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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11742482 B1

PDFFull Text
Date of Patent:
Aug. 29, 2023

Filed:

May. 05, 2021

Nickel-based active material for lithium secondary battery, method of preparing the same, and lithium secondary battery including positive electrode including the nickel-based active material

Applicant:

Samsung Sdi Co., Ltd., Yongin-si, KR;

Inventors:

Jongmin Kim, Yongin-si, KR;

Jiyoon Kim, Yongin-si, KR;

Pilsang Yun, Yongin-si, KR;

Donggyu Chang, Yongin-si, KR;

Kwanghwan Cho, Yongin-si, KR;

Jangsuk Hyun, Yongin-si, KR;

Jinhwa Kim, Yongin-si, KR;

Assignee:

Samsung SDI Co., Ltd., Yongin-si, KR;

Attorney:

Lewis Roca Rothgerber Christie LLP

Primary Examiner:

James Lee

Int. Cl.
CPC ...
H01M 4/525 (2010.01); H01M 4/485 (2010.01); H01M 4/505 (2010.01); C01G 53/00 (2006.01); H01M 10/052 (2010.01); H01M 4/02 (2006.01);
U.S. Cl.
CPC ...
H01M 4/525 (2013.01); C01G 53/006 (2013.01); C01G 53/42 (2013.01); C01G 53/50 (2013.01); H01M 4/485 (2013.01); H01M 4/505 (2013.01); C01P 2002/72 (2013.01); C01P 2002/85 (2013.01); C01P 2004/03 (2013.01); C01P 2004/50 (2013.01); C01P 2004/61 (2013.01); C01P 2004/84 (2013.01); C01P 2004/90 (2013.01); C01P 2006/12 (2013.01); C01P 2006/14 (2013.01); C01P 2006/16 (2013.01); C01P 2006/40 (2013.01); H01M 10/052 (2013.01); H01M 2004/021 (2013.01); H01M 2004/028 (2013.01);
Abstract

Provided are a nickel-based active material, a method of preparing the same, and a lithium secondary battery including a positive electrode including the nickel-based active material. The nickel-based active material includes at least one secondary particle including an aggregate of two or more primary particles, wherein at least a portion of the secondary particle has a radial array structure, and a hetero-element compound is positioned between the primary particles.

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